97 lines
2.8 KiB
Ruby
97 lines
2.8 KiB
Ruby
require 'faraday'
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require 'faraday_middleware'
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module ContainerRegistry
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class Client
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attr_accessor :uri
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MANIFEST_VERSION = 'application/vnd.docker.distribution.manifest.v2+json'
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# Taken from: FaradayMiddleware::FollowRedirects
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REDIRECT_CODES = Set.new [301, 302, 303, 307]
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def initialize(base_uri, options = {})
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@base_uri = base_uri
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@options = options
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end
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def repository_tags(name)
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response_body faraday.get("/v2/#{name}/tags/list")
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end
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def repository_manifest(name, reference)
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response_body faraday.get("/v2/#{name}/manifests/#{reference}")
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end
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def repository_tag_digest(name, reference)
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response = faraday.head("/v2/#{name}/manifests/#{reference}")
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response.headers['docker-content-digest'] if response.success?
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end
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def delete_repository_tag(name, reference)
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faraday.delete("/v2/#{name}/manifests/#{reference}").success?
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end
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def blob(name, digest, type = nil)
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type ||= 'application/octet-stream'
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response_body faraday_blob.get("/v2/#{name}/blobs/#{digest}", nil, 'Accept' => type), allow_redirect: true
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end
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def delete_blob(name, digest)
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faraday.delete("/v2/#{name}/blobs/#{digest}").success?
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end
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private
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def initialize_connection(conn, options)
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conn.request :json
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if options[:user] && options[:password]
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conn.request(:basic_auth, options[:user].to_s, options[:password].to_s)
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elsif options[:token]
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conn.request(:authorization, :bearer, options[:token].to_s)
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end
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conn.adapter :net_http
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end
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def accept_manifest(conn)
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conn.headers['Accept'] = MANIFEST_VERSION
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conn.response :json, content_type: 'application/json'
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conn.response :json, content_type: 'application/vnd.docker.distribution.manifest.v1+prettyjws'
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conn.response :json, content_type: 'application/vnd.docker.distribution.manifest.v1+json'
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conn.response :json, content_type: 'application/vnd.docker.distribution.manifest.v2+json'
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end
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def response_body(response, allow_redirect: false)
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if allow_redirect && REDIRECT_CODES.include?(response.status)
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response = redirect_response(response.headers['location'])
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end
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response.body if response && response.success?
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end
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def redirect_response(location)
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return unless location
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# We explicitly remove authorization token
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faraday_blob.get(location) do |req|
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req['Authorization'] = ''
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end
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end
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def faraday
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@faraday ||= Faraday.new(@base_uri) do |conn|
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initialize_connection(conn, @options)
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accept_manifest(conn)
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end
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end
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def faraday_blob
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@faraday_blob ||= Faraday.new(@base_uri) do |conn|
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initialize_connection(conn, @options)
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end
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end
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end
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end
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